code: def update_stats(data, t1, t2):
      stats.text = str(
          data[
              [
                  f"Close_{t1}",
                  f"Close_{t2}",
                  f"Returns_{t1}",
                  f"Returns_{t1}",
              ]
          ].describe()
      )
  
file_path: bokeh/examples/server/app/stocks/main.py
imports: from functools import lru_cache
  from bokeh.layouts import column, row
  from bokeh.models import ColumnDataSource, PreText, Select
  from bokeh.plotting import curdoc, figure
label_desc: Use image node_id 5 for calling a global function with example usage: update_stats(data, t1, t2) without return types